Cup Parts Kit - FUJI
The Q systems' maintenance kit consists of:
The diaphragm kit, which contains 3 pressure tubes with check valves in them. The check valves prevent the finish from backing up into the spray gun, and 3 extra cup gaskets. The gaskets seal the cup to make it airtight, without being airtight the spray gun will leak and not spray well or at all. This has happened many times with me when cleaning the gun and cup the gasket can get broken and without a new gasket you can't spray, the check valve will from time to time clog up and if it can't be freed up then it will need to be replaced. The kit also contains 3 plastic diaphragms that fits on the fluid tube just under the cup lid. The diaphragm in combination with the check valve prevents backing up of finish into the spray gun.